LP873345RHDT - Texas Instruments

Manufacturer Part Number

LP873345RHDT

Manufacturer

Texas Instruments

Introduction

The LP873345RHDT is a sophisticated power management integrated circuit (PMIC) designed specifically for applications requiring multiple power rails. It combines step-down buck converters and linear regulators in a compact package.

Product Features and Performance

Integrated with two step-down (buck) converters and two linear (LDO) regulators

Four independently controlled outputs

High switching frequency of 2MHz for reduced noise and improved efficiency

Supports a wide range of output voltages: 0.7V to 3.36V for buck converters and 0.8V to 3.3V for linear regulators

High output current capacity: 3A for each buck converter and 300mA for each linear regulator

Features sequencer for controlled startup

Surface mount, wettable flank package for reliable soldering and assembly

Product Advantages

Compact 28-VFQFN package saves board space

High efficiency due to high switching frequency and optimized topology

Flexible power solution with multiple regulated outputs

Key Technical Parameters

Number of Outputs: 4

Frequency Switching: 2MHz

Voltage/Current Output 1: 0.7V ~ 3.36V, 3A

Voltage/Current Output 2: 0.7V ~ 3.36V, 3A

Voltage/Current Output 3: 0.8V ~ 3.3V, 300mA

Voltage Supply: 2.5V ~ 5.5V

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Built-in thermal protection and over-current protection

Robust package design suitable for industrial temperature ranges

Compatibility

Compatible with a wide range of microprocessors and digital systems due to its flexible voltage supply parameters

Application Areas

Portable and battery-operated devices

Industrial control systems

Medical equipment

Telecommunications infrastructure

Product Lifecycle

Currently active with no planned discontinuation

Availability of potential future upgrades based on evolving technology standards

Several Key Reasons to Choose This Product

High efficiency and low noise operation due to advanced topological choices

Versatile output configurations catering to various power needs

Enhanced system reliability through built-in safety features

Suitable for harsh operating conditions

Ongoing product support and no foreseeable end-of-life issues